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PHOTOS: Mass shooting at Florida video game tournament

<p>A shooting occured at a downtown shopping-dining complex in Jacksonville on Sunday.</p>

BALTIMORE, Maryland — The suspect in an earlier mass shooting in Jacksonville is from Baltimore, authorities said Sunday.

According to the Jacksonville Sheriff's Office, the suspect is believed to be 24-year-old David Katz.

WMAR television station in Baltimore learned federal authorities are conducting an investigation in South Baltimore, in connection to the incident that took place earlier today at a Madden video game tournament at a shopping and dining complex in downtown Jacksonville, Florida.